TMS7 ME00070B Error 4: Current imbalance trip

TMS7 soft starter · taken from the manufacturer’s manual, pages cited

Fault code4

A current imbalance in the phases has exceeded sensitivity limits. The manual's first action is: “1. Monitor the supply voltage 2. Check the motor circuit”

Model
TMS7 ME00070B
Display shows
Current imbalance trip (4)
Type
Fault code
Source
Manual p. 29

What 4 means

Current imbalance trip p. 29

Common causes

  • An imbalance in the phase currents has exceeded the limits set in Function 7. Current Imbalance Sensitivity. p. 29

Safety warnings — read before you start

  • CAUTIONGROUNDING AND BRANCH CIRCUIT PROTECTION. It is the responsibility of the user or person installing the TMS7 to provide proper grounding and branch circuit protection according to the National Electric Code (NEC ®) and local codes. p. 3

What to do

  1. 1. Monitor the supply voltage 2. Check the motor circuit p. 29

If 4 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact TMS7 service.

Open the manual at page 29 All ME00070B error codes Manual details & download

This page summarises what the manufacturer’s manual says about 4; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with TMS7. Found a mistake? Report an error.